I know this SQL query provides the table structure:
DESC TableName;
But do we have a query which will provide table structure of all database tables in one go/single query/command? BTW, I am using SQL Developer.
Thank you in advance.
The answer can be found here. You can query
SELECT * FROM ALL_TAB_COLUMNS
or
SELECT * FROM ALL_TAB_COLS
Difference between ALL_TAB_COLUMNS and ALL_TAB_COLS
Not a command, but if you're in the GUI, getting all that information back in a single query result set could be a challenge to process, at least for this human it is.
So instead, you could also build a Data Dictionary report, complete with Referential Integrity diagrams - not sure if your peoplesoft box will actually have any foreign keys, but it's worth a shot.
File > Data Modeler > Import > Data Dictionary
Point to your existing SQL Developer Oracle Database connection.
Select the SCHEMA you want to pull from - check all if you want everything, but be prepared to wait for awhile, better to limit yourself to the application schemas.
If you're just interested in tables, just pick those, but I'm guessing VIEWs would also be of interest - there's a checkbox on the bottom to quick toggle everything ON.
Click Finish.
When you're done, you'll have a design and your data model. You'll see the diagram.
You can then go to File > Data Modeler > Reports
Choose either the Tables or Table Views report.
Set your format, and click 'Generate Report'
Related
I am new to access. I am using a tool/access database someone built, and it has an ODBC connection to an Oracle SQL database in it.
There are different queries on the side panel, and some of them are delete queries.
If I run these delete queries will they just modify data in my local access database without modifying the data in the Oracle Database?
Yes these will change something in the database whether its linked with another access database table or oracle table and within the database. To review the query you can open the queries in design view and run a normal select query so you can see what the queries are deleting. You can have a normal table image and or globe with a arrow in front pointing towards the table then its linked. A lot of times when I am testing I just run select queries and then I make a copy of what I will be deleting just in case anything goes wrong.
I have a database whose structure I'm happy with, but which has a fair amount of dummy data in it. I would like to drop and recreate the database while at the same time wiping out the tables, but retain the table structures and relationships.
When I right-click on the database and choose to script 'drop and create' statements they're for the database itself, but no mention of the tables within-- unless I'm missing something.
Is it possible to generate a script that drops/creates a database and the tables within? I can individually select each table and script out their drop/create statements and order things so it will work, but are there other ways of doing this in one swoop?
I have a localized version of Sql Server 2008 R2, so some of my instructions could be imprecise.
I hope that there are no big differences.
Right click on your database and select Tasks and then Generate Scripts
Leave the first option selected (Build script for all db and objects) and select next
On the second page click Advanced
Select the option to Build Script for DROP & CREATE
Select the option to Use only the Schema (not Schema and Data)
Check the other options you would like to use.
Finally choose your save options and click Next until SSMS creates the script
Instead of that you should do this. That way you can select different tables or stored procedure to script for. See MSDN How to: Generate a Script (SQL Server Management Studio) on how to do it step-by-step.
Right click on DB_Name -> select tasks -> Generate Scripts
We have a lot of databases and a lot of tables within those databases. I'm searching for a specific one. I know the name of the table but it wouldn't be easy to search through every database manually. What SQL statement could I used to find the table by name?
Btw, we're using Microsoft SQL Server Management Studio. Maybe there's another way to search for tables by name within this program?
You said you did a search which should've led you to this article:
http://blog.sqlauthority.com/2008/04/29/sql-server-find-table-in-every-database-of-sql-server/
If not, follow that. Basically what he creates is a stored procedure which will search for every table name you specify in every database.
If you were to do this:
select * from sys.tables where name like '%tablename%'
You would need to change the database every single time and if you have a lot, well you see the problem.
Try this:
Select name from DBname.sys.tables where name like '%info'
Thought I would update with the solution I use now to find a table among many dBs. After some searching around I found this query:
/*Finds a table across multiple dBs and returns the dB(s) in which the table was found*/
SELECT DISTINCT DB_NAME(database_id)
FROM [sys].[dm_db_index_operational_stats](NULL,NULL,NULL,NULL)
WHERE OBJECT_NAME(object_id,database_id) = 'table name'
This query finds the dB which holds the table. Then, in Microsoft SQL Server Mgmt Studio, I go to Object Explorer Window, find the dB identified by the query, expand its contents, and click on the Tables folder. Then I use the Filter tool to find the table by name. It would be nice if the filter tool worked on the Databases folder but it does not. You must select the Tables folder before filtering.
This may not be the best solution, but it works for me.
When I right click on the database I want to export data from, I only get to select a single table or view, rather than being able to export all of the data. Is there a way to export all of the data?
If this is not possible, could you advise on how I could do the following:
I have two databases, with the same table names, but one has more data than the other
They both have different database names (Table names are identical)
They are both on different servers
I need to get all of the additional data from the larger database, into the smaller database.
Both are MS SQL databases
Being that both are MS SQL Servers, on different hosts... why bother with CSV when you can setup a Linked Server instance so you can access one instance from the other via a SQL statement?
Make sure you have a valid user on the instance you want to retrieve data from - it must have access to the table(s)
Create the Linked Server instance
Reference the name in queries using four name syntax:
INSERT INTO db1.dbo.SmallerTable
SELECT *
FROM linked_server.db.dbo.LargerTable lt
WHERE NOT EXISTS(SELECT NULL
FROM db1.dbo.SmallerTable st
WHERE st.col = lt.col)
Replace WHERE st.col = lt.col with whatever criteria you consider to be duplicate values between the two tables.
There is also a very good tool by Redgate software that syncs data between two databases.
I've also used SQL scripter before to generate a SQL file with insert statements that you can run on the other database to insert the data.
If you right-click on the database, under the Tasks menu, you can use the Generate Scripts option to produce SQL scripts for all the tables and data. See this blog post for details. If you want to sync the second database with the first, then you're better off using something like Redgate as suggested in mpenrow's answer.
In Oracle SQL Developer, there's a "SQL" tab for each table. This tab contains most of the SQL code (CREATE TABLE, CREATE TRIGGER, etc) that's needed to recreate the table.
Is this information available programatically from the database system, or is this an application feature of SQL Developer? If the former, what commands/statements would I need to run to retrieve this information? If the later, are there any clever ways to get SQL Developer to export these statements?
If you are using Oracle 9i+ then you are looking for the DBMS_METADATA package. http://download.oracle.com/docs/cd/B10500_01/appdev.920/a96612/d_metada.htm. It will allow you to extract whatever DDL you want.
If you are looking for more specific information there is a whole host of views you can access for specific data elements similar to the ones given by #Quassnoi.
There are lots of information, but here are the main queries:
SELECT *
FROM dba_tables
SELECT *
FROM dba_tab_columns
SELECT *
FROM dba_ind_columns
To see what SQL Developer actually outputs, enable trace for all sessions with a LOGON TRIGGER and look into the trace file created by SQL Developer's internal session.
You are looking for the DDL of your database objects.
You can use the Oracle bundled DBMS_METADATA package to get it, from any PL/SQL prompt, with the GET_DDL function.
I use TOAD vs Oracle SQL Developer.
When I click on a "Script" tab when viewing an object (like a table) TOAD executes a whole host of queries and then compiles the "script" from the output of all of these queries.
dba_tables
dba_tab_columns
dba_ind_columns
...
I think replicating this functionality would be a tedious task.